Galapagos target fitness

Hello,

Is it possible to set up a rule for a target fitness result? I want to use Galapagos to limit the fitness above or below a specific value (or give a target range), as opposed to maximising or minimising. Note that I don't want to limit the value range of the inputs.

E.g:

A * 2 = B

1. Maximise the value of A whilst ensuring 20<B<25:

    I want A=12

2. Minimise the value of A whilst ensuring 20<B<25:

   I want A=10

Thanks